Who is running an e-fan

[foreverpsycotic]

I'm about to order a motorset from JHot, but they do not have any hydrofan setups (however they do have a tanabe exhaust :love. I was thinking of running the dual FAL fans instead of the non-existent hydrofan stuff. I know that I should get a fan controller, but money plays a huge roll and I wouldnt be able to afford it for another paycheck or 2. Would I be ok if I ran the fans off of a switch for a month or so. Any feed back from people running e-fans would be helpful. Thanks in advance.

 

[hottscennessey]

fans run off a switch should be fine, only problem is if anything goes wrong you only have yourself to blame. Make sure you have a large enough relay, thats a major cause in E-fan failures. I run a Bosch 75amp relay from ebay and it's holding up well with my dual DSM fans.

 

[foreverpsycotic]

Thx for the advice. Im used to driving the 7m, so ide be staring at the temp guage all the time, lol

 

[Ric]

I run a ford contour e-fan on a relay on a keyed power source. Figure minimum 50amp relay. Those install kits that come with 30 amp relays are trash, it will blow out sooner or later and usually the wiring is too small.

Tomorrow I'm ordering a new fan shroud for the factory mechanical fan, and going back to the old clutch style. I drive too much and I've ran into at least 2 situations where even good relays blow in 95* heat in traffic (thank god for spares in the glove box). I can't take that chance anymore.

 

[Rich]

If you have A/C in your car, you can use one of the two wires that switch the two small stock fans. Works perfectly, I have this set-up for over 5 years, never failed. I run dual e-fans.
If you don't have A/C you won't have the two small fans and also not the wiring + switch.

 

[kikwear002]

I run a 3600 cfm single electric fan with switch on and a bosch relay. Then again my radiator is 31 tall, 19 long, dual core aluminum so..

 

[foreverpsycotic]

would i need to switch anything with manual clutch stuff, or just wire up the e-fan, cap off the hydrofan lines and go?

 

[Ric]

Depends what you do with the car. If it's a weekend car and you want that 5whp, go efan. If you daily drive in stop and go traffic everyday, you want a factory fan unit either clutch or hydro.

 

[foreverpsycotic]

its a weekend/nice day car, and will see little to no traffic. what i meant by the question is if i go efan, do i need to swap anything that is on the originally hydrofan block.

 

[kikwear002]

I just looped the hydro fan lines and filled them with dex 3 trans fluid. To keep the option open if i find a hydro fan to put it on. I dont daily drive this car at all although.

 

[Jaguar]

If you have 'No Fear' you're not going fast enough.

aka CTD

Awesome! :icon_bigg

 

[bigaaron]

I have some 80 amp relays in a Bosch relay size :naughty: They work absolutely great with a simple thermostat switch, the kind that goes through the fins of the radiator. I should put a little kit together.

 

[Ric]

do you wanna mail me a relay for a smile in return?

 

[conundrum07]

Another option is to run 2 standard 30A bosch relays. I use one relay on each fan on my FAL's. Anotner perk to this method is it does provide some redundancy if one of the relays fails.

 

[Rich]

Depends what you do with the car. If it's a weekend car and you want that 5whp, go efan. If you daily drive in stop and go traffic everyday, you want a factory fan unit either clutch or hydro.

Why? The clutch or hydro work opposite of what you need > they only cool well when you're at speed: when you don't need it. They cool worse when at slow speed or stop-go traffic: when you do need the fans.
E-fans work only when you need them.

And why install bits and pieces that are allready present in the car? Wiring? It is there, twice! Relay? It is there. Thermostat? It is there.
Just buy a good pair of e-fans and hook them up on the wiring of the two small fans; the blue and white wiring with the black plugs near the battery.
(note: this does not apply when you do not have A/C)

 

[Rich]

Awesome! :icon_bigg

:biglaugh: thanks!
Do you people over there also have these reversed-cap-wearing dipshits driving a VW Golf (I think you call them Rabbit?) or Honda's with this sticker on their rear window? They're sooooooo sad!

 

[foreverpsycotic]

^^thats a good idea, however ide rather hardwire it to a switched power source, as it becomes a little more idiot proof and my parents may want to take the car out once and a while, and i dont trust them to turn it on all the time. any new technology to my father is a foreign language, he still cant turn on the computer.

 

[bigaaron]

Why? The clutch or hydro work opposite of what you need > they only cool well when you're at speed: when you don't need it. They cool worse when at slow speed or stop-go traffic: when you do need the fans.
E-fans work only when you need them.

And why install bits and pieces that are allready present in the car? Wiring? It is there, twice! Relay? It is there. Thermostat? It is there.
Just buy a good pair of e-fans and hook them up on the wiring of the two small fans; the blue and white wiring with the black plugs near the battery.
(note: this does not apply when you do not have A/C)

I think you are spreading some misinformation on this for sure.

The hydro fan is variable speed, it even has it's own ecu. It can be on high while you are sitting at idle, or it can be on low while you at high rpm. The hydrofan on high pulls more air then any electric fan you can buy. The hydrofan has all the benefits of a mechanical fan and an electric fan.

There is no stock temp switch on a Supra that is suitable to switch electric fans. You want to get an aftermarket 180 deg switch placed in the radiator.

 

[Rich]

I think you are spreading some misinformation on this for sure.

The hydro fan is variable speed, it even has it's own ecu. It can be on high while you are sitting at idle, or it can be on low while you at high rpm. The hydrofan on high pulls more air then any electric fan you can buy. The hydrofan has all the benefits of a mechanical fan and an electric fan.

There is no stock temp switch on a Supra that is suitable to switch electric fans. You want to get an aftermarket 180 deg switch placed in the radiator.

Yes, you're right about the hydro fan having regulated speed, but it doesn't move as much air when your engine is idling as two e-fans, the oil pressure is simply too low to generate enough power to spin the hydro fan fast.
No one over here is running the hydro fan, we all ditch it because e-fans simply flow much more air. When mine switch on, I can feel the hot air blowing under the car, throwing up quite some dust. The hydro fan does not do that.

And the stock thermo-switch IS suitable to switch the e-fans, I've been running mine for over 5 years without ever missing a beat and my temp gauge is allways rock solid in the middle, never goes up or down.
The relay, wiring and thermo-switch is reliable; it has been engineered to last.

 

[tissimo]

the hydrofan at idle with the a/c on moves as much probably more air them my dual fal fans...